import Vue from 'vue'
import VueRouter from 'vue-router'

// import Login from '../components/Login'
const Login = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Login')
// import Home from '../components/Home'
const Home = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/Home')
// const Welcome = () => import(/* webpackChunkName: "login_home_welcome" */ '../components/welcome')

// import Rights from '../components/power/Rights'
const Rights = () => import(/* webpackChunkName: "Rights_Roles_User" */ '../components/power/Rights')
// import Roles from '../components/power/Roles'
const Roles = () => import(/* webpackChunkName: "Rights_Roles_User" */ '../components/power/Roles')
// import User from '../components/user/User'
const User = () => import(/* webpackChunkName: "Rights_Roles_User" */ '../components/user/User')

// import Cate from '../components/goods/Cate'
const Cate = () => import(/* webpackChunkName: "Cate_Params" */ '../components/goods/Cate')
// import Params from '../components/goods/Params'
const Params = () => import(/* webpackChunkName: "Cate_Params" */ '../components/goods/Params')

// import List from '../components/goods/List'
const List = () => import(/* webpackChunkName: "List_Add" */ '../components/goods/List')
// import Add from '../components/goods/Add'
const Add = () => import(/* webpackChunkName: "List_Add" */ '../components/goods/Add')

// import Order from '../components/order/Order'
const Order = () => import(/* webpackChunkName: "Order_Report" */ '../components/order/Order')
// import Report from '../components/report/Report'
const Report = () => import(/* webpackChunkName: "Order_Report" */ '../components/report/Report')
Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: User },
        { path: '/users', component: User },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: List },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
      ]
    }
  ]
})

router.beforeEach((to, from, next) => {
  // to：将要访问路径，
  // from：从那个路径跳转而来
  // next：一个函数，表示放行    next( ) 放行    next('/login') 强制跳转
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
